Jabłonowo-Maćkowięta[jabwɔˈnɔvɔ mat͡ɕkɔˈvjɛnta] is a village in the administrative district of Gmina Janowiec Kościelny, within Nidzica County, Warmian-Masurian Voivodeship, in northern Poland. It lies approximately 6 kilometres (4 mi) south-west of Janowiec Kościelny, 14 km (9 mi) south of Nidzica, and 60 km (37 mi) south of the regional capital Olsztyn.